* {
    margin: 0;
    padding: 0;
}

header {
    width: 1000px;
    height: 500px;
    margin: 50px auto;
    background-color: rgb(255, 255, 255);
    box-sizing: border-box;
}

h1 {
    color: #000000;
    text-align: center;
    position: absolute;
    top: 25px;
    left: 465px;
}

.big {
    box-sizing: border-box;
    margin: 50px 180px;
    text-align: center;
    width: 600px;
    height: 600px;
    background-color: rgb(255, 255, 255);
    display: inline-block;
    overflow: hidden;
}

.one {
    width: 300px;
    height: 300px;
    box-sizing: border-box;
    text-align: center;
    background-color: #fff3e2;
    border: double 6px #ecd2c6;
    float: left;
    padding-top: 30px;
    margin-bottom: 5px;
}

.two {
    width: 300px;
    height: 300px;
    box-sizing: border-box;
    text-align: center;
    border: double;
    background-color: #fff3e2;
    border: double 6px #ecd2c6;
    float: right;
    padding-top: 30px;
    margin-bottom: 5px;
}

.three {
    width: 300px;
    height: 300px;
    box-sizing: border-box;
    border: double;
    text-align: center;
    background-color: #fff3e2;
    border: double 6px #ecd2c6;
    float: left;
    padding-top: 30px;
    margin-bottom: 25px;
}

.four {
    width: 300px;
    height: 300px;
    box-sizing: border-box;
    text-align: center;
    border: double;
    background-color: #fff3e2;
    border: double 6px #ecd2c6;
    float: right;
    padding-top: 30px;
    margin-bottom: 25px;
}